E rale des motetjrs gazogenes systems benier



2 Sheets-Sheet 1. L. BNIER. vGAS ENGINE.

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Patented Mar. 23., 1897.

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L. BNIER. GAS ENGINE.

No. 579,378. Patented Mar. 23, 1897.

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LEON BENIER, OE PARIS', FRANCE, nssIoNoa To rrnE OOMPAGNIEGEN- ERALE DEsMOTEURS eAZoGENEs SYSTEME BENIER, or SAME PLACE.

GAS-ENGlNE.

SPEGIFICATIGN forming part of Letters Patent No. 579,378, dated March23, 1897'.l

Application iled February 17,1894. Serial No. 500,518. (No model.)Patented in France December 29, 1893, No. 235,146; in Belgium January19, 1894, No. 108,139; in Switzerland January 22, 1894, No. 7,897; iuEngland January 24,1894,No. 1,581; in Germany January 28,1894,No.77,835; in Hungary February 18, 1894,No. 42; in Spain February26,1894,No. 15,400; in AustriaMarch 1, 1894, No. 221; iu Italy MarohBO,1894, No. 35,623 in Portugal November 28, 1894, No, 2,043;

in Luxemburg May 18, 1895, No. 2,809; iu Tunis May 26, 1895, No. 152,and in Turkey September 27,1895,1\To.465.

To @'ZZ whom t may concern:

Beit known that I, LON BNIER, engineer, a citizen of the Republic ofFrance, residing in Paris, France7 have invented certain 1mprovements inand Relating to Gas-Engines, (for which I have obtained patents inFrance, dated December 29, 1898, No. 235,140; in Belgium, dated January19, 1894, No. 108,139; in Hungary, dated February 18, 1894, No.

1o 42; in Austria, dated March 1, 1894, No. 221; in Italy, dated March30, 1894, No. 35,028; in Turkey, dated September 27, 1895, No. 405; inLuxemburg, dated May 18, 1895, No. 2,309; in England, dated January 24,1894,

i5 No.1,5815 in Spain, dated February26, 1894, No. 15,400; in Germany,dated January 28, 1894, No. 77,835; in Switzerland, dated Jannary 22,1894, No' 7,897; in Portugal, dated November 28, 1894, No. 2,043, and inTunis,

2o dated May 26, 1895, No. 152,) of which the following is aspecification.

My invention relates to an engine especially constructed to be operatedby poor gas and to work with a generator forming the subz 5 ject-matterof a patent granted to me December 24, 1895, No. 551,943, and in whichthe gas formed entirely depends on the Operation of the engine.

This improved gas-engine is arranged for giving one push in eachrevolution of the shaft, which push is more or less strong according tothe power to be produced and does not need to be suppressed.

A form of this engine is represented in the 5 5 accompanying drawings.

Figure l is a vertical longitudinal section through the axis of theengine-cylind er. Fig. 2 shows a horizontal section through the axis ofthe engine-cylinder. Fig. 3 shows a transverse section through the axisof the admission-valve and the gas-generator in outline. Fig. 4isapartial longitudinal section through the axis of the pumps.

The general arrangement of the engine cour prises the engine-cylinderd', the gas-pump b,

and the airpu1np d. The cylinder cZ is provided with dischargeoriiicesZt, and when its piston d. is at the end of its instroke there is aspace between the end of the piston and the end of the cylinder, usuallycalled the 5o compression-chamber. 7 The pistons of the gas and airpumps are in one, and the pumps have approximately the same volume.. Theair-pump a draws in air through the valve a', and on its return strokedrives the air out through the pipe q to the space n and valve c. Thegas-pu mp b communicates with the gasgenerator G lV by the pipe X X', inwhich is a throttlevalve m, hereinafter explained. The gas-pump b sucksthe gas from the gen- 6o erator through the valve b, and on its returnstroke drives the gas through the pipe y to the space p, Where it mixeswith the air from the space n and passes through the valve c to theengine-cylinder. 6 5

In order that the replacement of the burned gases by the fresh mixturemay be eected under economical conditions without loss of gas by escape,it is necessary that the first portions delivered by the pumps shall not7o contain gas, but only `pure air, which comes in contact with theburned gases and drives them away. As the two pumps operate together,the gas-pump must commence by delivering pure air like the air-pump.This is obtained in the following manner: The two pumps are in constantcommunication by means of their delivery-pipes q and gy and through thespaces n and p in the interior of the valve-loox o. Consequently duringthe 8o suction of the pumps some air passes into the outlet-pipe g/ ofthe gas-pump b. A valve Z is placed upon the gas-deliverypipe to prevent the gas-pump being filled with air during the suction, the airentering more easily 8 5 than the gas, which must traverse the 1wholegasgenerator. By completely closing this valve Z during the suction, acertain quantity only of air is permitted to pass into the gas-A pump,this quantity being limited to the vol- 9o unie necessary for fillingthe delivery-pipe. A nut g regulates the opening of the valve Z duringsuction. From this it follows that when the piston of the pumpscommences the delivery only air will at first pass into theengine-cylinder until the air contained in the gas delivery pipe hasbeen driven away. Then gas enters through p and air through n insuitable proportions for forming the explosive mixture, which aredetermined by the section of the cylinders of the pumps. The gas-pumpsucks in at each stroke a certain volume of gas from the gas-generatorand delivers it directly into the engine-cylinder. This suction causesthe drawing into the n'asgenerator of an equivalent quantity ot air andsteam, which traverses the furnace of the gas-generator to form the gas.

I do not claim in this application the specic form of gas-generator, asthis is claimed in my aforesaid patent, but its relation to the enginedescribed herein, which operates the gas-generator to form the gasnecessary for the consumption of this engine.

The quantity of gas sucked in each stroke, and consequently the inlet ofair and steam into the furnace of the gas-generator, may be varied bythe governor.

The governor placed at f and actuating the throttle-valve m allows onlythe quantity of gas necessary for producing the work which the engine isrequired to perform to pass into the pump in each stroke. I obtain moreor less strong explosions without any need for suppressing them, evenwhen the engine runs idle.

The ignition of the explosive mixture is effected by an electricigniting device placed at if.

The working of the apparatus is as follows: The piston of the pumps,which is actuated by a crank forming an angle ot' ninety degrees withthe crank of the engine, is drawing air into the cylinder a, gas intothe cylinder Z9, (and in consequence air and steam into the gasgeneratorG,) and air into the return-pipe y during the latter part of the inwardand the first part of the outward strokes of the piston d of theengine-cylinder d. The discharge from the cylinder d takes placenaturally while the piston uncovers the orifices h. They are uncoveredwhen the piston has traversed about ve-sixths of its forward stroke.Therefore they remain open during the last sixth of the forward strokeand during the first sixth of the backward stroke. During this time thepiston of the pumps, making its return stroke, forces into theengine-cylinder the air and gas which have been sucked in. This mixtureenters the cylinder through the valve c, the air arriving at n and thegas at p. The mixture, passing thro ugh the pipe r, provided at thecenter of the cylinder-cover, traverses the small plates s, which havefor their object to cause the current of the mixture to take the sectionof the cylinder, se as to completely drive away the burned gases whichiill the cylinder. The en gine-piston, returning to the rear after ithas covered the discharge-orices, compresses the mixture introduceduntil it reaches the end of its rear stroke. At this moment theexplosion takes place and the expanding gases push the engine-piston inits forward stroke until the dischargeoriiices open, when the sameoperations recommence.

I claim as my inventionl. In a gas-motor, the combination of amotive-power cylinder, with a gas-pump provided with a gas-inlet valveand a return-pipe leading to the motive-power cylinder, and meanswhereby during the suction stroke of the gas-pum p, gas is drawn intothe pump and air into the said returnpipe, substantially as set forth.

2. In a gas-motor the combination of a motive-power cylinder, with agas-pump provided with a gas-inlet valve and a return-pipe leading tothe motive-power cylinder, the said pipe communicating with theatmosphere during the suction of the pump, and an adjustable automaticvalve in the said pipe adapted to open freely during the return strokeof the pump, but to incompletely close during the suction, substantiallyas and for the purposes set forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses. l I

LEON BICNIER.

W'itnesses:

CLYDE SHRoPsHIRE, LoN FRANKENs.

